Use of free silicon in liquid phase sintering of silicon nitrides and sialons
Patent
·
OSTI ID:7149820
This invention relates to the production of improved high density nitrogen based ceramics by liquid-phase densification of silicon nitride or a compound of silicon-nitrogen-oxygen-metal, e.g. a sialon. In the process and compositions of the invention minor amounts of finely divided silicon are employed together with the conventional liquid phase producing additives to enhance the densification of the resultant ceramic. 4 figs.
- Research Organization:
- Cornell University
- DOE Contract Number:
- AC02-77ER04386
- Assignee:
- Cornell Research Foundation, Inc., Ithaca, NY (United States)
- Patent Number(s):
- US 4552711; A
- Application Number:
- CNN: DMR-79-24008; PPN: US 6-634530
- OSTI ID:
- 7149820
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CERAMICS
CHALCOGENIDES
COMPACTING
DENSITY
FABRICATION
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
SILICON COMPOUNDS
SILICON NITRIDES
SINTERING
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CERAMICS
CHALCOGENIDES
COMPACTING
DENSITY
FABRICATION
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
SILICON COMPOUNDS
SILICON NITRIDES
SINTERING